Waterville is a town in Lamoille County, Vermont, United States. The population was 673 at the 2010 census.
Waterville is in northwestern Lamoille County, in the valley of the North Branch of the Lamoille River. The town is bordered to the west by Franklin County. Vermont Route 109 runs through the center of town, up the North Branch valley. It leads northeast (upstream) 10 miles (16 km) to Vermont Route 118 at Belvidere Corners and southwest 5 miles (8 km) to Jeffersonville in the town of Cambridge.
According to the United States Census Bureau, the town of Waterville has a total area of 16.4 square miles (42.5 km2), of which 0.04 square miles (0.1 km2), or 0.34%, are water.
As of the census of 2000, there were 697 people, 260 households, and 186 families residing in the town. The population density was 42.5 people per square mile (16.4/km2). There were 284 housing units at an average density of 17.3 per square mile (6.7/km2). The racial makeup of the town was 97.27% White, 0.43% Native American, 0.29% Asian, and 2.01% from two or more races.
There were 260 households, out of which 38.1% had children under the age of 18 living with them, 58.1% were married couples living together, 6.5% had a female householder with no husband present, and 28.1% were non-families.